yannstatic/static/2019/12/25/raspberry-hotspot-wifi.html

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<article itemscope itemtype="http://schema.org/Article"><div class="article__header"><header><h1 style="color:Tomato;">raspberry-hotspot-wifi</h1></header></div><meta itemprop="headline" content="raspberry-hotspot-wifi"><div class="article__info clearfix"><ul class="left-col menu"><li>
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<i class="far fa-calendar-alt"></i>&nbsp;<span title="Création" style="color:#FF00FF">25&nbsp;déc.&nbsp;&nbsp;2019</span>
<span title="Modification" style="color:#00FF7F">23&nbsp;nov.&nbsp;&nbsp;2018</span></li></ul></div><meta itemprop="datePublished" content="2018-11-23T00:00:00+01:00">
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</details><h1 id="2017-06-03-raspberry-hotspot-wifi">2017-06-03-raspberry-hotspot-wifi</h1>
<h1 id="raspbianraspberry">Raspbian/Raspberry</h1>
<h2 id="créer-un-hotspot-wifi-sur-raspberry">Créer un hotspot WiFi sur Raspberry</h2>
<p>Un point daccès WiFi peut être utile dans de nombreux projets à base de Raspberry Pi : créer un mini routeur pour partager une connexion réseau filaire ou simplement permettre la connexion de périphériques réseaux à un système isolé de tout réseau (Raspberry Pi embarqué dans une voiture par exemple). Nous allons voir comment mettre en place très simplement un point daccès WiFi complet.</p>
<p>Il existe une multitude dadaptateurs WiFi USB : miniature pour un encombrement minimal, avec antenne pour une meilleure portée, compatible normes g/n/ac… Certains sont compatibles directement avec Raspbian, dautres nécessitent linstallation de pilotes spécifiques. Il faut se renseigner sur la compatibilité de ladaptateur avant tout achat. Le site <a href="http://elinux.org/RPi_USB_Wi-Fi_Adapters">eLinux.org</a> est une mine dor pour trouver ce genre dinformation.</p>
<p>Adaptateur TP-LINK TL-WN821N. Il faut vérifier que votre adaptateur supporte le mode Access Point (AP).</p>
<p>Cas spécifique le Raspberry Pi dans sa version 3 embarque directement un chipset WiFi, il nest donc pas nécessaire den acquérir un connectable en USB.</p>
<h3 id="préparation-logicielle">Préparation logicielle</h3>
<p>Lensemble des manipulations ont été effectuées sur la distribution Raspbian Jessie Lite (mettre à jour le système et le firmware) .</p>
<p>Nous allons installer <strong>hostapd</strong> le « moteur » du point daccès et <strong>udhcpd</strong> un serveur DHCP permettant dattribuer automatiquement les adresses IP aux périphériques :</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>sudo apt install hostapd udhcpd
</code></pre></div></div>
<p>Vérification initiale</p>
<p>Après avoir connecté notre adaptateur WiFi en USB (A faire HORS TENSION), vérifions que celui-ci est bien reconnu par Raspbian :</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>lsusb
</code></pre></div></div>
<p>Dans mon cas une ligne concerne mon adaptateur WiFi dans la réponse de la commande :</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>Bus 001 Device 004: ID 0bda:8178 Realtek Semiconductor Corp. RTL8192CU 802.11n WLAN Adapter
</code></pre></div></div>
<p>Il est possible que votre périphérique ai besoin de pilotes spécifiques pour fonctionner sur Raspbian. Dans ce cas il faut vous renseigner en fonction de ladaptateur que vous avez choisi.</p>
<p>On vérifie ensuite les modes supportés par ladaptateur :</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>iw list
</code></pre></div></div>
<p>Dans la catégorie <strong>Supported interface modes</strong> il faut que le mode mode AP soit présent.</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>[...]
Supported interface modes:
* IBSS
* managed
* AP
* monitor
* P2P-client
* P2P-GO
[...]
</code></pre></div></div>
<h3 id="configuration-dhcp-et-réseau">Configuration DHCP et réseau</h3>
<p>Pour que les clients sans-fil connectés à notre point daccès Raspberry Pi puissent communiquer il leur faut une adresse IP. On configure donc un serveur DHCP pour délivrer automatiquement ces adresses.</p>
<p>Edition du fichier de configuration <strong>/etc/udhcpd.conf</strong> via nano par exemple :</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>sudo nano /etc/udhcpd.conf
</code></pre></div></div>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code># Début et fin de la plage d'adresses IP
start 192.168.55.2
end 192.168.55.15
# L'interface réseau utilisée par le serveur DHCP
interface wlan0
max_leases 10
# Quelques options des baux DHCP
remaining yes
opt dns 208.67.222.222 208.67.220.220 # OpenDNS
option subnet 255.255.255.0
opt router 192.168.55.1
option lease 864000 # 10 jours en secondes
</code></pre></div></div>
<p>Editer le fichier <strong>/etc/default/udhcpd</strong> et commenter la ligne suivante pour activer le DHCP :</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>DHCPD_ENABLED="no" en # DHCPD_ENABLED="no"
</code></pre></div></div>
<p>Créer un fichier “DHCP lease” vide qui sera automatiquement rempli plus tard par udhcpd</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>sudo touch /var/lib/misc/udhcpd.leases
</code></pre></div></div>
<p>Désactiver le client DHCP pour linterface wlan0 en ajoutant la ligne <code class="language-plaintext highlighter-rouge">denyinterfaces wlan0</code> à la fin du fichier <strong>/etc/dhcpcd.conf</strong> mais avant toute ligne <strong>interface</strong> .</p>
<p>Editer le fichier de configuration <strong>/etc/network/interfaces</strong> et modifier la configuration pour linterface <strong>wlan0</strong> afin de lui attribuer une adresse IP fixe :</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>allow-hotplug wlan0
iface wlan0 inet static
address 192.168.55.1
netmask 255.255.255.0
network 192.168.55.0
</code></pre></div></div>
<p>On applique ensuite la configuration en redémarrant le client DHCP et linterface wlan0 :</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>sudo service dhcpcd restart
sudo ifdown wlan0
sudo ifup wlan0
</code></pre></div></div>
<h3 id="configuration-du-point-daccès-wifi">Configuration du point daccès WiFI</h3>
<p>Créer le fichier de configuration <strong>/etc/hostapd/hostapd.conf</strong></p>
<p>Exemple de configuration pour un point daccès WiFi norme N nommé WN821N et sécurisé WPA2-PSK</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>interface=wlan0
driver=nl80211
ssid=WN821N
hw_mode=g
channel=0
ieee80211d=1
country_code=FR
ieee80211n=1
wmm_enabled=1
macaddr_acl=0
auth_algs=1
ignore_broadcast_ssid=0
wpa=2
wpa_passphrase=85xeQmX9
wpa_key_mgmt=WPA-PSK
rsn_pairwise=CCMP
</code></pre></div></div>
<p>Exemple de configuration pour un point daccès WiFi norme N nommé Code4Pi_AP et non sécurisé</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>interface=wlan0
driver=nl80211
ssid=Code4Pi_AP
hw_mode=g
channel=0
ieee80211d=1
country_code=FR
ieee80211n=1
wmm_enabled=1
macaddr_acl=0
auth_algs=1
ignore_broadcast_ssid=0
</code></pre></div></div>
<p>Quelques indications sur les paramètres :</p>
<ul>
<li>interface : Interface de votre adaptaeur wifi qui sert de point daccès.</li>
<li>driver : A modifier si vous utiliser un autre pilote pour un adaptateur spcifique.</li>
<li>ssid : Nom de votre point daccès WiFi (à entourer de guillemets sil y a des espaces).</li>
<li>hw_mode : Définit la bande de fréquence à utiliser ( g pour 2,4GHz, a pour 5GHz)</li>
<li>channel : Canal WiFi à utiliser. Les valeurs conseillées sont 1 , 6 ou 11 . La valeur 0 correspond à un choix automatique.</li>
<li>ieee80211d : Limite les fréquences utilisables à celles autorisées dans le pays ( 0 désactivé, 1 activé).</li>
<li>country_code : Code pays</li>
<li>ieee80211n : Support de la norme 802.11n ( 0 désactivé, 1 activé).</li>
<li>ieee80211ac : Support de la norme 802.11ac ( 0 désactivé, 1 activé).</li>
<li>wmm_enabled : Support de la QoS ( 0 désactivé, 1 activé).</li>
<li>macaddr_acl : Restriction daccès par adresse MAC ( 0 accès sauf si dans la liste noire, 1 refus daccès sauf si dans la liste blanche)</li>
<li>auth_algs : Algorithme de sécurité ( 1 pour wpa, 2 pour wep, 3 pour les deux)</li>
<li>ignore_broadcast_ssid : Rendre le nom du point daccès invisible ( 0 désactivé, 1 activé).</li>
<li>wpa : Activer le WPA</li>
<li>wpa_passphrase : Mot de passe de votre point daccès (metter des guillemets si il y a des espaces et un minimum 5 caractères).</li>
<li>wpa_key_mgmt : Algorithme de clefs autorisées</li>
<li>rsn_pairwise : Algorithme de chiffrement pour WPA2</li>
</ul>
<p>Indiquer dans le fichier <strong>/etc/default/hostapd</strong> lemplacement de notre configuration en renseignant le paramètre DAEMON_CONF :</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>DAEMON_CONF="/etc/hostapd/hostapd.conf"
</code></pre></div></div>
<p>Activer le Hotspot WiFi et le serveur DHCP :</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>sudo service hostapd start
sudo service udhcpd start
</code></pre></div></div>
<p>A cette étape vous devriez disposer dun point daccès visible depuis vos périphériques WiFi. Cependant celui-ci ne permet que de contacter notre Raspberry ou les autres périphériques connectés à ce point daccès. Pour lutiliser en tant que « routeur WiFi » et disposer également de la connectivité internet fournie par le port ethernet il est nécessaire de configurer quelques éléments supplémentaires.
Configurer le NAT</p>
<p>Le NAT (Network Address Translation) est une technique permettant à différents périphériques dutiliser une unique connexion à internet. Cest le cas de la box de votre FAI par exemple. Cest le NAT qui va vous permettre de partager la connexion filaire de votre Raspberry Pi vers les différents périphériques connectés à votre point daccès WiFi.</p>
<p>Activer lIP forwarding via la commande :</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>sudo sh -c "echo 1 &gt; /proc/sys/net/ipv4/ip_forward"
</code></pre></div></div>
<p>Editer le fichier <strong>/etc/sysctl.conf</strong> et décommenter la ligne <strong>net.ipv4.ip_forward=1</strong> pour activer le paramètre à chaque démarrage.</p>
<p>Executer les différentes commandes pour activer le routage correct des données.</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>sudo iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
sudo iptables -A FORWARD -i eth0 -o wlan0 -m state --state RELATED,ESTABLISHED -j ACCEPT
sudo iptables -A FORWARD -i wlan0 -o eth0 -j ACCEPT
</code></pre></div></div>
<p>Sauvegarder les nouvelles règles</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>sudo sh -c "iptables-save &gt; /etc/iptables.ipv4.nat"
</code></pre></div></div>
<p>Ajouter les règles au fichier de configuration principale via la ligne suivante à la fin du fichier <strong>/etc/network/interfaces</strong></p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>up iptables-restore &lt; /etc/iptables.ipv4.nat
</code></pre></div></div>
<p>Votre point daccès est alors pleinement fonctionnel !</p>
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}
function addArray (_data) {
const added = []
clear()
for (let i = 0, len = _data.length; i < len; i++) {
if (isObject(_data[i])) {
added.push(addObject(_data[i]))
}
}
return added
}
function search (crit) {
if (!crit) {
return []
}
return findMatches(data, crit, opt.searchStrategy, opt).sort(opt.sort)
}
function __setOptions_4 (_opt) {
opt = _opt || {}
opt.fuzzy = _opt.fuzzy || false
opt.limit = _opt.limit || 10
opt.searchStrategy = _opt.fuzzy ? _$FuzzySearchStrategy_5 : _$LiteralSearchStrategy_6
opt.sort = _opt.sort || NoSort
opt.exclude = _opt.exclude || []
}
function findMatches (data, crit, strategy, opt) {
const matches = []
for (let i = 0; i < data.length && matches.length < opt.limit; i++) {
const match = findMatchesInObject(data[i], crit, strategy, opt)
if (match) {
matches.push(match)
}
}
return matches
}
function findMatchesInObject (obj, crit, strategy, opt) {
for (const key in obj) {
if (!isExcluded(obj[key], opt.exclude) && strategy.matches(obj[key], crit)) {
return obj
}
}
}
function isExcluded (term, excludedTerms) {
for (let i = 0, len = excludedTerms.length; i < len; i++) {
const excludedTerm = excludedTerms[i]
if (new RegExp(excludedTerm).test(term)) {
return true
}
}
return false
}
/* globals ActiveXObject:false */
'use strict'
var _$JSONLoader_2 = {
load: load
}
function load (location, callback) {
const xhr = getXHR()
xhr.open('GET', location, true)
xhr.onreadystatechange = createStateChangeListener(xhr, callback)
xhr.send()
}
function createStateChangeListener (xhr, callback) {
return function () {
if (xhr.readyState === 4 && xhr.status === 200) {
try {
callback(null, JSON.parse(xhr.responseText))
} catch (err) {
callback(err, null)
}
}
}
}
function getXHR () {
return window.XMLHttpRequest ? new window.XMLHttpRequest() : new ActiveXObject('Microsoft.XMLHTTP')
}
'use strict'
var _$OptionsValidator_3 = function OptionsValidator (params) {
if (!validateParams(params)) {
throw new Error('-- OptionsValidator: required options missing')
}
if (!(this instanceof OptionsValidator)) {
return new OptionsValidator(params)
}
const requiredOptions = params.required
this.getRequiredOptions = function () {
return requiredOptions
}
this.validate = function (parameters) {
const errors = []
requiredOptions.forEach(function (requiredOptionName) {
if (typeof parameters[requiredOptionName] === 'undefined') {
errors.push(requiredOptionName)
}
})
return errors
}
function validateParams (params) {
if (!params) {
return false
}
return typeof params.required !== 'undefined' && params.required instanceof Array
}
}
'use strict'
var _$utils_9 = {
merge: merge,
isJSON: isJSON
}
function merge (defaultParams, mergeParams) {
const mergedOptions = {}
for (const option in defaultParams) {
mergedOptions[option] = defaultParams[option]
if (typeof mergeParams[option] !== 'undefined') {
mergedOptions[option] = mergeParams[option]
}
}
return mergedOptions
}
function isJSON (json) {
try {
if (json instanceof Object && JSON.parse(JSON.stringify(json))) {
return true
}
return false
} catch (err) {
return false
}
}
var _$src_8 = {};
(function (window) {
'use strict'
let options = {
searchInput: null,
resultsContainer: null,
json: [],
success: Function.prototype,
searchResultTemplate: '<li><a href="{url}" title="{desc}">{title}</a></li>',
templateMiddleware: Function.prototype,
sortMiddleware: function () {
return 0
},
noResultsText: 'No results found',
limit: 10,
fuzzy: false,
debounceTime: null,
exclude: []
}
let debounceTimerHandle
const debounce = function (func, delayMillis) {
if (delayMillis) {
clearTimeout(debounceTimerHandle)
debounceTimerHandle = setTimeout(func, delayMillis)
} else {
func.call()
}
}
const requiredOptions = ['searchInput', 'resultsContainer', 'json']
/* removed: const _$Templater_7 = require('./Templater') */;
/* removed: const _$Repository_4 = require('./Repository') */;
/* removed: const _$JSONLoader_2 = require('./JSONLoader') */;
const optionsValidator = _$OptionsValidator_3({
required: requiredOptions
})
/* removed: const _$utils_9 = require('./utils') */;
window.SimpleJekyllSearch = function (_options) {
const errors = optionsValidator.validate(_options)
if (errors.length > 0) {
throwError('You must specify the following required options: ' + requiredOptions)
}
options = _$utils_9.merge(options, _options)
_$Templater_7.setOptions({
template: options.searchResultTemplate,
middleware: options.templateMiddleware
})
_$Repository_4.setOptions({
fuzzy: options.fuzzy,
limit: options.limit,
sort: options.sortMiddleware,
exclude: options.exclude
})
if (_$utils_9.isJSON(options.json)) {
initWithJSON(options.json)
} else {
initWithURL(options.json)
}
const rv = {
search: search
}
typeof options.success === 'function' && options.success.call(rv)
return rv
}
function initWithJSON (json) {
_$Repository_4.put(json)
registerInput()
}
function initWithURL (url) {
_$JSONLoader_2.load(url, function (err, json) {
if (err) {
throwError('failed to get JSON (' + url + ')')
}
initWithJSON(json)
})
}
function emptyResultsContainer () {
options.resultsContainer.innerHTML = ''
}
function appendToResultsContainer (text) {
options.resultsContainer.innerHTML += text
}
function registerInput () {
options.searchInput.addEventListener('input', function (e) {
if (isWhitelistedKey(e.which)) {
emptyResultsContainer()
debounce(function () { search(e.target.value) }, options.debounceTime)
}
})
}
function search (query) {
if (isValidQuery(query)) {
emptyResultsContainer()
render(_$Repository_4.search(query), query)
}
}
function render (results, query) {
const len = results.length
if (len === 0) {
return appendToResultsContainer(options.noResultsText)
}
for (let i = 0; i < len; i++) {
results[i].query = query
appendToResultsContainer(_$Templater_7.compile(results[i]))
}
}
function isValidQuery (query) {
return query && query.length > 0
}
function isWhitelistedKey (key) {
return [13, 16, 20, 37, 38, 39, 40, 91].indexOf(key) === -1
}
function throwError (message) {
throw new Error('SimpleJekyllSearch --- ' + message)
}
})(window)
}());
</script>
<!-- Configuration -->
<script>
SimpleJekyllSearch({
searchInput: document.getElementById('search-input'),
resultsContainer: document.getElementById('results-container'),
noResultsText: '<p>Aucun résultat!</p>',
json: '/search.json',
searchResultTemplate: '<li><a href="{url}">{date}&nbsp;{title}</a>&nbsp;(Création {create})</li>'
})
</script>
</div></div>
<script>(function() {
var SOURCES = window.TEXT_VARIABLES.sources;
window.Lazyload.js(SOURCES.jquery, function() {
function scrollToAnchor(anchor, duration, callback) {
var $root = this;
$root.animate({ scrollTop: $(anchor).position().top }, duration, function() {
window.history.replaceState(null, '', window.location.href.split('#')[0] + anchor);
callback && callback();
});
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$.fn.scrollToAnchor = scrollToAnchor;
});
})();
(function() {
var SOURCES = window.TEXT_VARIABLES.sources;
window.Lazyload.js(SOURCES.jquery, function() {
function affix(options) {
var $root = this, $window = $(window), $scrollTarget, $scroll,
offsetBottom = 0, scrollTarget = window, scroll = window.document, disabled = false, isOverallScroller = true,
rootTop, rootLeft, rootHeight, scrollBottom, rootBottomTop,
hasInit = false, curState;
function setOptions(options) {
var _options = options || {};
_options.offsetBottom && (offsetBottom = _options.offsetBottom);
_options.scrollTarget && (scrollTarget = _options.scrollTarget);
_options.scroll && (scroll = _options.scroll);
_options.disabled !== undefined && (disabled = _options.disabled);
$scrollTarget = $(scrollTarget);
isOverallScroller = window.isOverallScroller($scrollTarget[0]);
$scroll = $(scroll);
}
function preCalc() {
top();
rootHeight = $root.outerHeight();
rootTop = $root.offset().top + (isOverallScroller ? 0 : $scrollTarget.scrollTop());
rootLeft = $root.offset().left;
}
function calc(needPreCalc) {
needPreCalc && preCalc();
scrollBottom = $scroll.outerHeight() - offsetBottom - rootHeight;
rootBottomTop = scrollBottom - rootTop;
}
function top() {
if (curState !== 'top') {
$root.removeClass('fixed').css({
left: 0,
top: 0
});
curState = 'top';
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function fixed() {
if (curState !== 'fixed') {
$root.addClass('fixed').css({
left: rootLeft + 'px',
top: 0
});
curState = 'fixed';
}
}
function bottom() {
if (curState !== 'bottom') {
$root.removeClass('fixed').css({
left: 0,
top: rootBottomTop + 'px'
});
curState = 'bottom';
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var interval, timeout;
calc(true); setState();
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calc();
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timeout = setTimeout(function() {
clearInterval(interval);
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window.pageLoad.then(function() {
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clearInterval(interval);
clearTimeout(timeout);
}, 3000);
});
$scrollTarget.on('scroll', function() {
disabled || setState();
});
$window.on('resize', function() {
disabled || (calc(true), setState());
});
hasInit = true;
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setOptions(options);
if (!disabled) {
init();
}
$window.on('resize', window.throttle(function() {
init();
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return {
setOptions: setOptions,
refresh: function() {
calc(true, { animation: false }); setState();
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}
$.fn.affix = affix;
});
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var SOURCES = window.TEXT_VARIABLES.sources;
window.Lazyload.js(SOURCES.jquery, function() {
function toc(options) {
var $root = this, $window = $(window), $scrollTarget, $scroller, $tocUl = $('<ul class="toc toc--ellipsis"></ul>'), $tocLi, $headings, $activeLast, $activeCur,
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headingsPos, scrolling = false, hasRendered = false, hasInit = false;
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_options.container && (container = _options.container);
_options.scrollTarget && (scrollTarget = _options.scrollTarget);
_options.scroller && (scroller = _options.scroller);
_options.disabled !== undefined && (disabled = _options.disabled);
$headings = $(container).find(selectors).filter('[id]');
$scrollTarget = $(scrollTarget);
$scroller = $(scroller);
}
function calc() {
headingsPos = [];
$headings.each(function() {
headingsPos.push(Math.floor($(this).position().top));
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function setState(element, disabled) {
var scrollTop = $scrollTarget.scrollTop(), i;
if (disabled || !headingsPos || headingsPos.length < 1) { return; }
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} else {
for (i = 0; i < headingsPos.length; i++) {
if (scrollTop >= headingsPos[i]) {
$activeCur = $tocLi.eq(i);
} else {
$activeCur || ($activeCur = $tocLi.eq(i));
break;
}
}
}
$activeLast && $activeLast.removeClass('active');
($activeLast = $activeCur).addClass('active');
}
function render() {
if(!hasRendered) {
$root.append($tocUl);
$headings.each(function() {
var $this = $(this);
$tocUl.append($('<li></li>').addClass('toc-' + $this.prop('tagName').toLowerCase())
.append($('<a></a>').text($this.text()).attr('href', '#' + $this.prop('id'))));
});
$tocLi = $tocUl.children('li');
$tocUl.on('click', 'a', function(e) {
e.preventDefault();
var $this = $(this);
scrolling = true;
setState($this.parent());
$scroller.scrollToAnchor($this.attr('href'), 400, function() {
scrolling = false;
});
});
}
hasRendered = true;
}
function init() {
var interval, timeout;
if(!hasInit) {
render(); calc(); setState(null, scrolling);
// run calc every 100 millisecond
interval = setInterval(function() {
calc();
}, 100);
timeout = setTimeout(function() {
clearInterval(interval);
}, 45000);
window.pageLoad.then(function() {
setTimeout(function() {
clearInterval(interval);
clearTimeout(timeout);
}, 3000);
});
$scrollTarget.on('scroll', function() {
disabled || setState(null, scrolling);
});
$window.on('resize', window.throttle(function() {
if (!disabled) {
render(); calc(); setState(null, scrolling);
}
}, 100));
}
hasInit = true;
}
setOptions(options);
if (!disabled) {
init();
}
$window.on('resize', window.throttle(function() {
init();
}, 200));
return {
setOptions: setOptions
};
}
$.fn.toc = toc;
});
})();
/*(function () {
})();*/
</script><script>
/* toc must before affix, since affix need to konw toc' height. */(function() {
var SOURCES = window.TEXT_VARIABLES.sources;
var TOC_SELECTOR = window.TEXT_VARIABLES.site.toc.selectors;
window.Lazyload.js(SOURCES.jquery, function() {
var $window = $(window);
var $articleContent = $('.js-article-content');
var $tocRoot = $('.js-toc-root'), $col2 = $('.js-col-aside');
var toc;
var tocDisabled = false;
var hasSidebar = $('.js-page-root').hasClass('layout--page--sidebar');
var hasToc = $articleContent.find(TOC_SELECTOR).length > 0;
function disabled() {
return $col2.css('display') === 'none' || !hasToc;
}
tocDisabled = disabled();
toc = $tocRoot.toc({
selectors: TOC_SELECTOR,
container: $articleContent,
scrollTarget: hasSidebar ? '.js-page-main' : null,
scroller: hasSidebar ? '.js-page-main' : null,
disabled: tocDisabled
});
$window.on('resize', window.throttle(function() {
tocDisabled = disabled();
toc && toc.setOptions({
disabled: tocDisabled
});
}, 100));
});
})();
(function() {
var SOURCES = window.TEXT_VARIABLES.sources;
window.Lazyload.js(SOURCES.jquery, function() {
var $window = $(window), $pageFooter = $('.js-page-footer');
var $pageAside = $('.js-page-aside');
var affix;
var tocDisabled = false;
var hasSidebar = $('.js-page-root').hasClass('layout--page--sidebar');
affix = $pageAside.affix({
offsetBottom: $pageFooter.outerHeight(),
scrollTarget: hasSidebar ? '.js-page-main' : null,
scroller: hasSidebar ? '.js-page-main' : null,
scroll: hasSidebar ? $('.js-page-main').children() : null,
disabled: tocDisabled
});
$window.on('resize', window.throttle(function() {
affix && affix.setOptions({
disabled: tocDisabled
});
}, 100));
window.pageAsideAffix = affix;
});
})();
</script><!---->
</div>
<script>(function () {
var $root = document.getElementsByClassName('root')[0];
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